CN1837052A - Method and device for preparing solution - Google Patents
Method and device for preparing solution Download PDFInfo
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- CN1837052A CN1837052A CN 200510200168 CN200510200168A CN1837052A CN 1837052 A CN1837052 A CN 1837052A CN 200510200168 CN200510200168 CN 200510200168 CN 200510200168 A CN200510200168 A CN 200510200168A CN 1837052 A CN1837052 A CN 1837052A
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- pipeline
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- variable valve
- under meter
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- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention discloses the Solution allocating method and setting in the industrial process of alumina. It contains elevated make-up tank, circulating mother liquor storing tank, flowmeter, governing valve and densimeter, after transporting evaporating primary liquid, evaporating mother liquid, strong evaporating liquid, caustic light liquid and liquid caustic solution to elevated make-up tank and mixing, the densimeter in this tank shows mixed density, if the density falls short of requirement, adjusting the flux separately by flow counter and adjustable valve on pipeline, the coincidental miscible liquids after prepare inflowing the circulating mother liquor storing tank. This invention predigests process flow, decreasing operation post, saving construction investment and improving labor productivity; the setting is easy to operate, automatic control degree is high, the concentration error og allocated miscible liquids is small, completely satisfying the request of downstream operation.
Description
Technical field:
The present invention relates to the preparing solution method and the device of alumina producing.
Technical background:
Some zone in alumina producing needs the preparing solution of several different concns is become a kind of mixed solution, to satisfy the requirement of road production process down.In present existing technology, majority adopts chemical analyses or enters difference respectively, and is aided with under meter or the metering of container method, and this is the flow process complexity not only, and the allotment accuracy is relatively poor, and some operation is produced detrimentally affect.
As decomposition nut liquid (vaporizing raw liquor), mother liquid evaporation, aqueous alkali, the light liquid of causticization being arranged in evaporation region, reaching the solution of mending alkali five kinds of different concns such as (caustic liquid alkali).Prior art is most to be adopted: vaporizing raw liquor all enters evaporator bank and evaporates, and brings the vapo(u)rization system mass flow big therefrom, causes the utility appliance of vapo(u)rization system and the load of system to increase; The light liquid of causticization enters the vaporizing raw liquor groove, enters evaporator bank then, and in evaporative process, the lime suspended substance in the light liquid of causticization forms scabbing of being difficult to clean on the hot face of vaporizer, causes heat transfer efficiency to reduce; The liquid base of high density enters clear groove of the higher decompositionization of temperature or highly basic liquid bath etc., thereby has caused the corrosion to production unit; Mother liquid evaporation and aqueous alkali then enter the circulating mother liquor storage tank.
Summary of the invention:
The objective of the invention is to: a kind of process simplification is provided, and effective preparing solution method and device are to overcome the problem that prior art exists.
After the present invention is achieved in that vaporizing raw liquor, mother liquid evaporation, aqueous alkali, the light liquid of causticization and caustic liquid alkali is sent into high-order make-up tank simultaneously and mix, densometer in this groove shows the density of mixed solution, when its density is against regulation when requiring, then by under meter on the pipeline and variable valve, respectively its flow is regulated, flowed into the circulating mother liquor storage tank through the satisfactory mixed solution of allotment.
Formation of the present invention: it comprises high-order make-up tank (12), circulating mother liquor storage tank (10), under meter (2), (5), variable valve (3), (4) and densometer (13), in vaporizing raw liquor pipeline (1), under meter (2) and variable valve (3) are installed, under meter (5) and variable valve (4) are installed in aqueous alkali pipeline (6), vaporizing raw liquor pipeline (1), aqueous alkali pipeline (6), the light liquid pipeline of causticization (7), caustic liquid alkali pipeline (8) is connected with high-order make-up tank (12) with mother liquid evaporation pipeline (11) is in parallel, densometer (13) is installed, densometer (13) and under meter (2) in high-order make-up tank (12), (5), variable valve (3), (4) interlock by electrical connection respectively.High-order make-up tank (12) is connected with circulating mother liquor storage tank (10) by pipeline (9).
Beneficial effect of the present invention is: simplified flow process, reduced operating post, can save construction investment and raise labour productivity; Operation of equipment is easy, and the automatic control degree is higher, and the mixed liquid concentration error after the allotment is less, satisfies the requirement of next procedure fully.Can be applicable to the preparing solution process of alumina producing.
Description of drawings:
Accompanying drawing 1 is circulating mother liquor allotment synoptic diagram of the present invention.
In the accompanying drawing, 1. vaporizing raw liquor pipeline, 2. under meter, 3. variable valve, 4. variable valve, 5. under meter, 6. aqueous alkali pipeline, the 7. light liquid pipeline of causticization, 8. caustic liquid alkali pipeline, 9. circulating mother liquor pipeline, 10. circulating mother liquor storage tank, 11. mother liquid evaporation pipelines, 12. high-order make-up tanks, 13. densometers.
Embodiment:
Embodiments of the invention: according to the requirement of feed flow and output, make vaporizing raw liquor pipeline (1), aqueous alkali pipeline (6), the light liquid pipeline of causticization (7), caustic liquid alkali pipeline (8), mother liquid evaporation pipeline (11), pipeline (9), high-order make-up tank (12) and circulating mother liquor storage tank (10), and under meter (2) and variable valve (3) be installed in vaporizing raw liquor pipeline (1), variable valve (4) and under meter (5) are installed in aqueous alkali pipeline (6), with vaporizing raw liquor pipeline (1), aqueous alkali pipeline (6), the light liquid pipeline of causticization (7), caustic liquid alkali pipeline (8) is connected with high-order make-up tank (12) with mother liquid evaporation pipeline (11) is in parallel, while packing density meter (13) in high-order make-up tank (12), densometer (13) and under meter (2), (5), variable valve (3), (4) undertaken chainly respectively by electrical connection, high-order make-up tank (12) is connected with circulating mother liquor storage tank (10) by pipeline (9).
During work, with vaporizing raw liquor, mother liquid evaporation, aqueous alkali, the light liquid of causticization and five kinds of solution of caustic liquid alkali, after sending into high-order make-up tank (12) simultaneously and mix by pipeline, densometer (13) in the high-order make-up tank (12) promptly shows the density of the mixed solution in the make-up tank (12), when the density of mixed solution is against regulation when requiring, then send signal by under meter (2) and variable valve (3), the flow of vaporizing raw liquor is regulated and passed through under meter (5) and variable valve (4), the flow of aqueous alkali is regulated.The satisfactory mixed solution in allotment back flows into circulating mother liquor storage tank (10) by pipeline (9), promptly finishes the allocation process of mixing solutions.Then according to the needs of next procedure, with being pumped to next procedure.
Claims (2)
1. the preparing solution method of an aluminum oxide production process, it is characterized in that: after vaporizing raw liquor, mother liquid evaporation, aqueous alkali, the light liquid of causticization and caustic liquid alkali are sent into high-order make-up tank mixing simultaneously, densometer in this groove shows the density of mixed solution, when its density is against regulation when requiring, then by under meter on the pipeline and variable valve, respectively its flow is regulated, flowed into the circulating mother liquor storage tank through the satisfactory mixed solution of allotment.
2. the device of a preparing solution method as claimed in claim 1, it comprises high-order make-up tank (12), circulating mother liquor storage tank (10), under meter (2), (5), variable valve (3), (4) and densometer (13), it is characterized in that: in vaporizing raw liquor pipeline (1), under meter (2) and variable valve (3) are installed, under meter (5) and variable valve (4) are installed in aqueous alkali pipeline (6), vaporizing raw liquor pipeline (1), aqueous alkali pipeline (6), the light liquid pipeline of causticization (7), caustic liquid alkali pipeline (8) is connected with high-order make-up tank (12) with mother liquid evaporation pipeline (11) is in parallel, densometer (13) is installed in high-order make-up tank (12), densometer (13) and under meter (2), (5), variable valve (3), (4) interlock by electrical connection respectively, high-order make-up tank (12) is connected with circulating mother liquor storage tank (10) by pipeline (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510200168 CN1837052A (en) | 2005-03-23 | 2005-03-23 | Method and device for preparing solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510200168 CN1837052A (en) | 2005-03-23 | 2005-03-23 | Method and device for preparing solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1837052A true CN1837052A (en) | 2006-09-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510200168 Pending CN1837052A (en) | 2005-03-23 | 2005-03-23 | Method and device for preparing solution |
Country Status (1)
| Country | Link |
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| CN (1) | CN1837052A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101372350B (en) * | 2007-08-23 | 2010-12-08 | 沈阳铝镁设计研究院 | Control system and control method for alkali liquor preparing system |
| CN102743988A (en) * | 2012-07-30 | 2012-10-24 | 山东博丰利众化工有限公司 | Automatic unloading, liquid distribution and delivery system of alkali liquid and based on aluminum fluoride production |
| CN108393022A (en) * | 2017-02-08 | 2018-08-14 | 鞍钢股份有限公司 | Isoquinoline blending device and process |
| CN113608560A (en) * | 2021-06-18 | 2021-11-05 | 东北大学 | Control system for alumina alkaline liquor blending process |
-
2005
- 2005-03-23 CN CN 200510200168 patent/CN1837052A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101372350B (en) * | 2007-08-23 | 2010-12-08 | 沈阳铝镁设计研究院 | Control system and control method for alkali liquor preparing system |
| CN102743988A (en) * | 2012-07-30 | 2012-10-24 | 山东博丰利众化工有限公司 | Automatic unloading, liquid distribution and delivery system of alkali liquid and based on aluminum fluoride production |
| CN108393022A (en) * | 2017-02-08 | 2018-08-14 | 鞍钢股份有限公司 | Isoquinoline blending device and process |
| CN113608560A (en) * | 2021-06-18 | 2021-11-05 | 东北大学 | Control system for alumina alkaline liquor blending process |
| CN113608560B (en) * | 2021-06-18 | 2023-08-25 | 东北大学 | Control system for alumina alkali liquor blending process |
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